Fuuuuuuuu. I think Golden1 (my credit union, not the bank I usually use) did that to me once *years* ago and I was so angry I drove to the branch in Davis to yell at someone. Random may have heard that, I was loud.
Edit: It wasn't the same thing, just similar - new card with a new PIN. So the Visa part of my old card was valid, but there was no way to use it to get cash and there was nothing they could do until the new card arrived. Fucking embarrassing. No idea how things like this make it out into the real world.
Edit 2: You have til 10a CST to figure it out *for sure*, but I am 99% sure they will hold your order for a full 24 hours regardless. If you want to risk it, tell them you're over it and you're thinking about cancelling the purchase altogether. They might knock $50 or $100 off. Heh. I mean, as long as you have to be on the phone anyway.